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Finding the Fourth Proportional to 528,059.20, 792,088.80 and 469,998.40

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Solution

The fourth proportional to 528,059.20, 792,088.80 and 469,998.40 is: 704,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,059.20 : 792,088.80 = 469,998.40 : x
  2. Step 2: Convert to fraction form
    528,059.20/792,088.80 = 469,998.40/x
  3. Step 3: Cross multiply
    528,059.20x = 792,088.80 × 469,998.40
  4. Step 4: Simplify right side
    528,059.20x = 372,280,468,657.92
  5. Step 5: Solve for x
    x = 372,280,468,657.92/528,059.20
  6. Step 6: Final answer
    x = 704,997.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.